And george dickman



(No Model.)

L. P. GONARD.

BUTTON 0R STUD.

' PatentedDeo; 7,1886.

- the-county of Middlesex, England, have in- LEON PAUL OONARD, OF NO. 11 OLD ATENT Orricr.

NORTH STREET, RED LION SQUARE,

COUNTY OF MIDDLESEX, ENGLAND, ASSIGNOR TO GEORGE W. MABIE, OF BROOKLYN, NE? YORK, AND GEORGE DIOKMAN, OF \VEST NOB- WOOD, ENGLAND.

BUTTON OR STUD.

SPECIFICATION forming part of Letters Patent No. 353,778,1iated December 7, 1886.

Application filcdAp1il27,18E6.

T0 aZZ whom it may concern Be it known that I, LEON PAUL CONARD, a citizen of the French Republic, residing at No. 11 Old North Street, Red Lion Square, in

vented a new and useful Improvement in Buttons or Studs, of which the following is a specification.

My invention relates to separable cutf but- IO tons or studs in which one of the parts is provided with an oblong hollow post and the other part is provided with a T-shaped shank adapted to be entered through the post, and by turning one part relatively to the other to be engaged with the part on which is the hol- 10w oblong post.

The invention consists in a novel means whereby the shoe and head may be looked after turning, one relatively to the other, so

'20 that they will not be accidentally turned to disengage the T-shaped shank from the hollow post. In what I now consider a preferaable form of my invention these means for locking the two parts consist, essentially, of

two plates or disks, one of which is secured in the head, so that it cannot turn independently thereof, and the other of which is provided with arms which enter the hollow oblong post, and is adapted to be turned relatively to the companion plate or disk, which is fixed in the head. These two plates are, one ofthem, provided with perforations or depressions, and the other with spring-fingers which have at the end convex projections adapted to enter 5 the perforations or depressions in the firstnamed plate.

In the accompanying drawings, Figures 1 and 2 are sectional views, in planes at right angles to each other, of a button embodying my invention. 3 is an inverted plan of the head of the button. Fig. 4 is a plan of the shoe with its hollow oblong post. Fig. 5is an inverted plan of the locking plate or disk, which is secured in the head. Figs. 6 and 7 are elevations, in planes at right angles to each other, of this locking-plate; and Figs. 8 and 9 are respectively an inverted plan and an elevation of the companion locking plate or Serial No. 200,264. (No model.)

disk,which is capable of turning relatively t the head. y

Similar letters of reference designate corresponding parts in all the figures.

A designates the head, which is here represented as hollow, and may be made of sheet metal; and B designates the shoe, which is composed of two plates having a space between them. The shoe B is provided with a hollow post, B, of oblong transverse section, and the head A is provided with a shank, 0, having a crossbar at the end opposite the head; or, in other words, made T-shaped, so that it may be inserted through the hollow oblong post B, and then by turning may be made to overlap the inner plate of the shoe on opposite sidesof the post, as shown in Fig. 2, so as to hold the 6 head and shoe firmly together.

The means here represented for locking the head and shoe in the position to which they are turned, to hold them in engagement, asin Fig. 2, consist, essentially, of two plates or disks, D D, one of which, D, is capable of turning in the head or relatively to the head, and the other of which, D, is fixed in the head by solder or otherwise.

As here represented,t hc edge portion of the cap-plate, which forms the head A, is turned inward, so as to lap under the plate or disk D and prevent its detachment from the head, while permitting of its being turned relatively to or in the head. The plate or diskD is provided with arms cLwhich enter thehollow post B, as shown in Fig. 1, and lock the plate to the post, so as to compel them to turn in unison. I have here represented the shank O as rigidly connected with the plate D; but it may be otherwise fixed to the head, itdesired. Whenever the head and shoe are turned, one relatively to the other, the plate D remains fixed or turns with the shoe, while theplate D remains stationary or turns with the head A. 0 One ofthe two platcsin this instance the plate D-is provided with perforations or depressions a, and the other plate-in this instance the plate D--is provided with spring fingers or arms b, which may have at their free ends 5 convex projections or knobs b. The parts are so constructedt-hat the knobs or projections 12 are in a circle of the same diameter as that in which the perforations or depressions a are arranged; and hence, when the plate D is turned relatively to the plate D, the knobs or projections b will spring into the holes or depressions awhen brought opposite to the same.

When the parts of the button are separated, the cross-bar of the T-shaped shank G will lie in the same plane with the arms d, and will be held in this position by the knobs or projections b of the spring fingers or arms engaging two of the perforations or depressions a. When the parts are to be connected,the shank G and arms d are slipped into the hollow post B, and the head and shoe are then turned, one relatively to the other, until the knobs or projections b spring into the other two perforations or depressions a. The cross-bar of the T-shaped shank U will then be in a plane transverse to the major 'axisof the oblong post B, and'the two parts of the button will be securely connected.

The spring fingers or detents' I), while they What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a separable button or stud, the combination, with a shoe having an oblong hollow post and a head having a T-shaped shank adaptedto be entered through the post and locked to the shoe by turning one part relatively to the other, of a rotary plate having arms which enter the post, and a spring-detent post,,and the two plates D D, one having perforations or depressions a and the other having spring-detents b, the plate D being locked to the post by arms d, and the plate D being fixed in the head, substantially as herein described.

LnoN PAUL ooNARDQ Witnesses:

ALBERT EDWD. REEs, Clerk, 7 Weightma'ns Terrace, WeightmansRd., Hornsey, N.

CHARLES EDWARD CURTIS, Clerk, 19 Stadium Street, Chelsea, S. W 

